\begin{table}%t2 \caption{\label{xmm-results}Results of the X-ray spectral analysis.} \par \small%\centerline { \begin{tabular}{lllll} \hline\hline &&&& \\[-8pt] Detector & $kT$ [keV] & $Z_{{\rm Fe}}$ [$Z_{\odot}$] & $z$ & $\chi^2$/d.o.f. \\ (1) & (2) & (3) & (4) & (5) \\ \hline %&&&& \\[-8pt] MOS1 & $\rm 6.2_{-0.8}^{+1.0}$ & $\rm 0.37_{-0.18}^{+0.20}$ & $\rm 0.96_{-0.03}^{+0.02}$ & $45.1/51$ \\ MOS2 & $\rm 6.2_{-0.6}^{+1.1}$ & $\rm 0.42_{-0.21}^{+0.22}$ & $\rm 0.95_{-0.02}^{+0.03}$ & $50.1/44$ \\ MOS1+2 & $\rm 6.25_{-0.55}^{+0.69}$ & $0.38\pm0.14$ & $0.96\pm0.02$ & $95.4/98$ \\ MOS1+2 & $\rm 6.4_{-0.6}^{+0.7}$ & $\rm 0.34_{-0.13}^{+0.14}$ & $0.975^{1}$ & $96.8/99$ \\[2pt] \hline \end{tabular}} \smallskip $^{1}$ Fixed redshift. \end{table}